Japspeed Manifold/decat advice?

[Hopey24]

Hi so I've decided to buy an m2 cat back system for my ctr, I was also thinking into buying a Japspeed 4-2-1 Manifold to go with the system and was wondering if the 4-2-1 configuration would work well or would a 4-1 Japspeed Manifold be better suited for normal road use?, also with the 4-2-1 manifold you get a decat, I've heard they make your engine run lean without a remap would I be able to still run the decat and see some gains without risking my engine too much from running lean or will it far too lean and thus dangerous?.

Cheers

 

[Ed]

You will have to get a remap with a decat

 

[Hazz]

Best bang for buck manifold there is IMO. Decent gauge stainless, mandrel bent and good quality welding, what more could you want?

+1 for remap. An o2 sim doesn't cut the mustard.

 

[ep3keith]

so this manifold worth it as am going to tdi in april gather mods at the moment